/**
* gst_video_orientation_get_hflip:
* @video_orientation: #GstVideoOrientation interface of a #GstElement
- * @flip: return location for the result
+ * @flip: (out): return location for the result
*
* Get the horizontal flipping state (%TRUE for flipped) from the given object.
* Returns: %TRUE in case the element supports flipping
/**
* gst_video_orientation_get_vflip:
* @video_orientation: #GstVideoOrientation interface of a #GstElement
- * @flip: return location for the result
+ * @flip: (out): return location for the result
*
* Get the vertical flipping state (%TRUE for flipped) from the given object.
* Returns: %TRUE in case the element supports flipping
/**
* gst_video_orientation_get_hcenter:
* @video_orientation: #GstVideoOrientation interface of a #GstElement
- * @center: return location for the result
+ * @center: (out): return location for the result
*
* Get the horizontal centering offset from the given object.
* Returns: %TRUE in case the element supports centering
/**
* gst_video_orientation_get_vcenter:
* @video_orientation: #GstVideoOrientation interface of a #GstElement
- * @center: return location for the result
+ * @center: (out): return location for the result
*
* Get the vertical centering offset from the given object.
* Returns: %TRUE in case the element supports centering